Founding apparatus



- Jan. 14, 1930. H. H. c. GRONDAHL FOUNDING APPARATUS Filed Sept. 3, 1926 4 MN w w WM 4 l Mm 1 V ma m A 5 H w L fi w hm fi f\ Nm LIL #wp Patented Jan. 14, 1930 UNITED HANS HENRIK CHRISTIAN GBOND'AI-IL, OF CHICAGO, ILLINOIS, ASSIGNOB, TO VTIIES'JFELRN ELECTRIC COMPANY, INCORPORATED, OF' NEW YORK, N. Y., A CORPORATION OF NEW YORK FOUNDING APZFARATUS Application filed September 3, 1928. Serial No. 133,316.

This invention relates to founding apparatus, and more particularly to the type of founding apparatus in which a stationary furnace may be used.

In one system of casting metals particularly employed in casting slabs or billets of non-ferrous metals, the molds are successively conveyed to a position in which they may receive the molten metal which is discharged from a stationary furnace when the furnace is tilted.

An object of the invention is to provide an efficient and inexpensive apparatus for handling molds.

In accordance with one embodiment, the invention contemplates providing a turret for carrying a plurality of molds comprising a rotatably mounted cylinder having secured thereto a plurality of channel shaped bars, the upper portions of which extend above the cylinder for suspending molds therefrom so that the molds contact with the bars throughout a greater portion of their length to prevent tilting.

It is believed that a complete understanding of the invention may be had by reference to the following description taken in conjunction with the accompanying drawings illustrating one embodiment of the invention, and in which Fig. 1 is a schematic view of the assembled founding apparatus;

Fig. 2 is a side elevation, shown partly in section, of a turret for holding the molds, and

Fig. 3 is a plan view thereof.

Referring to the drawings in which similar parts are designated by the same numerals in the several views, the apparatus is represented in Fig. 1 showing a stationary, pivotally mounted furnace 11 adapted to be charged by a charging device 12 and capable of being tilted to discharge the molten metal into molds carried by a turret 14.

Opposite the charging means a turret is provided for holding molds 92 into which the metal is poured when the furnace is tilted. The rotary portion of the turret is mounted on an annular base 82 provided with an annular groove 83 which forms a race for ball bearings 84. A second annular member 85 constitutes an upper bearing member having a similar groove 90 whichcarries a cylinder 86. The lower bearingmember is provided with a circular rim 80 which projects upwardly and encircles the upper bearing memher to prevent dust from entering the bearmg. However, any dust which penetrates the small opening between the rim and the upper bearing member is collected in a groove 70 formed between the rim and the lower bearing member and may be removed by unscrewing bolts 73 which hold the rim in place and removing the rim. The cylinder 86 is provided at its upper and lower end with outwardly projecting fianges87 and 88, A cover 95 for preventing the spilling of molten metal into the cylinder 85 is supported'by the upper flanges 87 thereof. At spacedintervals aboutthe cylinder are placed a number of channel shaped bars 89 secured to the flanges 87 and 88 by brackets 9191. M The molds 92 which may be of any suitable type are provided with a 1ug'93 by means of which they may be sus pended on the turret by engaging the upper end of the channel shaped bars. Th'e'large bearing area provided by this construction together with the absence of frictional contact with internal supporting members makes the turret easy to rotate which may be done manually.

In operating the founding apparatus three cars 35 are rolled on the dumping racks of the furnace charging mechanism, each of which contains a charge for the furnace. In this manner sufficient material can be loaded on the charging mechanism to insure a supply for the'furnace for some time. To charge the furnace one of the racks is tilted-to dump the contents of a car in the spout 71 from which it is raked into the furnace by the operator. After the material is discharged into the furnace, the spout 71 is elevated and the material in the furnace is allowed to melt. After the material has become molten the turret is rotated until a mold is under the spout and 7 the furnace is tilted forwardly to discharge material into the mold. When a mold is filled the furnace is tilted backwardly to prevent further discharging until the turret is rotated to bring another mold into the receiving position when the operation is repeated.

It will be understood that the embodiment of the invention herein described and illustrated is merely a convenient and useful form of the invention, which is capable of many other modifications without departing from I the spirit and scope of the invention.

What is claimed is: V 1. In a founding apparatus, a rotatable V turret for carrying molds comprising an ,an-

nular support, a member rotatably mounted thereon, a channel bar secured to and extending throughout the length ofthe member, and I a portion of the bar projecting upwardly for suspending a moldthere from which contacts wit-h the bar throughout a greater portion of its length to prevent tilting.

2. In a founding apparatus, a turret for carrying a plurality of molds comprising a vertically rotatable tubular member provided,

with an outwardly extending flange at each end; a plurality of channel-shaped bars secured throughout and extending above the tubular member for suspending and engaging the molds substantially throughout their lengthto prevent tilting.

3. In a founding apparatus, a turret for carrying a plurality of molds comprising an annular base member, a vertically rotatable cylinder mounted thereon, and a plurality of channel shaped bars extending above the cylinder and secured thereto, the upper ends of said bars supporting the molds which contact with the bars at various points through out their length to maintain'the molds in vertical alignment and thus prevent tilting.

In witness whereof, I hereunto subscribe my name this 13th day of August, A. D. 1926.

HANS HENRIK CHRISTIAN GRONDAHL; 

